Gerrard, Weatherlight Hero, Blade of Shared Souls, Ashnod's Altar, Eternal Scourge, and Mirror Gallery

Prerequisites

• Eternal Scourge in exile
• All other permanents on the battlefield
• You control at least two additional nontoken creatures
• available

Steps

1. Activate Ashnod's Altar twice by sacrificing two additional nontoken creatures, adding
2. Cast Eternal Scourge from exile by paying
3. Activate Blade of Shared Souls' equip ability by paying , attaching it to Eternal Scourge
4. Blade of Shared Souls triggers, causing Eternal Scourge to become a copy of Gerrard
5. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding
6. When Eternal Scourge dies, it triggers, exiling it and returning all other artifact and creature cards put into your graveyard this turn to the battlefield
7. Repeat

Results

• Infinite colorless mana
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite storm count